[SR-Users] How do I allow any user to register? And why doesn't a call reach the other end in my case?

[Victor Sergienko]

Hi,

I'm pretty ignorant about Kamailio, sorry for it and possible
terminology mistakes.

I'd like to allow any user to register. Ideally, I'd like to make some
script (Lua/whatever) function to check some data encoded in a
username and allow registering based on that username only.

I undefined WITH_AUTH in kamailio.cfg, and it used to work for me; but
sometimes I'm starting to get
"SIP Progress: 100 trying -- your call is important to us ()"
and the call never reaches the other party.

Here's a sample of my logs during the failed call:
https://gist.github.com/singalen/c343f09b67dcf7731fe0

What is the problem here?

I start and stop the clients all the time, so there might be some
garbage registrations accumulated. I assume I also need a user
registration to discard all his previous registrations?

Thank you!